NFSv4: Fix the underestimation of delegation XDR space reservation

commit 5a1f6d9e9b803003271b40b67786ff46fa4eda01 upstream.

Account for the "space_limit" field in struct open_write_delegation4.

Fixes: 2cebf82883f4 ("NFSv4: Fix the underestimate of NFSv4 open request size")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 4479f66..b6dbf70 100644 (file)
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -149,8 +149,10 @@ static int nfs4_stat_to_errno(int);
                                open_owner_id_maxsz + \
                                encode_opentype_maxsz + \
                                encode_claim_null_maxsz)
+#define decode_space_limit_maxsz       (3)
 #define decode_ace_maxsz       (3 + nfs4_owner_maxsz)
 #define decode_delegation_maxsz        (1 + decode_stateid_maxsz + 1 + \
+                               decode_space_limit_maxsz + \
                                decode_ace_maxsz)
 #define decode_change_info_maxsz       (5)
 #define decode_open_maxsz      (op_decode_hdr_maxsz + \